O'Neill Reactor Youth Springsuit Wetsuit 2mm The 2mm O'Neill REACTOR shorty springsuit gets you into a quality suit at a great price! 30% of the suit (shoulders and sleeves) are made of supertretch neoprene so it won't restrict your upper body range of motion. Features durable flatlock seams, neck seal to resist flushing, seamless paddle zones for range of motion & a chafe free day.